Novel Applications

Stancil, Daniel D.; Prabhakar, Anil

doi:10.1007/978-0-387-77865-5_10

Cited by 94 publications

(87 citation statements)

References 19 publications

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“…Magnonic crystal can also be made from magneto-insulating materials such yttrium iron garnet (YIG) [ 18 , 48 ]. Similar to BIG, YIG possesses good optical properties, which makes it possible to develop devices exploiting the physics of light-spin wave interaction [ 26 ]. The progress in this direction is supported by advances in the fabrication of magneto-optical components compatible with silicon platform [ 49 ].…”

Section: Magneto-plasmonicsmentioning

confidence: 99%

“…Microwave magnetic nanodevices [ 17 – 24 ] are often viewed as the most probable candidates for the integration with photonic devices. This is because many processes involved in physics of magneto-optical phenomena are well understood (see, e.g., [ 25 ]), and many magneto-optical devices [ 25 , 26 ] (e.g., magneto-optical drives) had huge commercial success in the past and remain in use nowadays. Moreover, in magnetic data storage media, magnetic nanostructures have already been combined with nanoelectronics (e.g., in read heads and magnetic random access memories).…”

Section: Introductionmentioning

confidence: 99%

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Magneto-Plasmonics and Resonant Interaction of Light with Dynamic Magnetisation in Metallic and All-Magneto-Dielectric Nanostructures

Maksymov

2015

Nanomaterials

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A significant interest in combining plasmonics and magnetism at the nanoscale gains momentum in both photonics and magnetism sectors that are concerned with the resonant enhancement of light-magnetic-matter interaction in nanostructures. These efforts result in a considerable amount of literature, which is difficult to collect and digest in limited time. Furthermore, there is insufficient exchange of results between the two research sectors. Consequently, the goal of this review paper is to bridge this gap by presenting an overview of recent progress in the field of magneto-plasmonics from two different points of view: magneto-plasmonics, and magnonics and magnetisation dynamics. It is expected that this presentation style will make this review paper of particular interest to both general physical audience and specialists conducting research on photonics, plasmonics, Brillouin light scattering spectroscopy of magnetic nanostructures and magneto-optical Kerr effect magnetometry, as well as ultrafast all-optical and THz-wave excitation of spin waves. Moreover, readers interested in a new, rapidly emerging field of all-dielectric nanophotonics will find a section about all-magneto-dielectric nanostructures.

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Section: Magneto-plasmonicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magneto-Plasmonics and Resonant Interaction of Light with Dynamic Magnetisation in Metallic and All-Magneto-Dielectric Nanostructures

Maksymov

2015

Nanomaterials

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“…It strongly depends on the magnetic parameters of the film (saturation magnetization M S , magneto-crystalline anisotropies, and thickness) and on the magnetization precession losses. 2,3 The latter enter the effective magnetic damping a eff which scales with 1/L att . Hence, research in the field of magnonics focuses on magnetic materials with low damping.…”

mentioning

confidence: 99%

Magnetic damping in poly-crystalline Co25Fe75: Ferromagnetic resonance vs. spin wave propagation experiments

Körner

Schoen

Mayer

et al. 2017

Applied Physics Letters

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We report on the investigation of the magnetic damping of a 10 nm thin, poly-crystalline Co 25 Fe 75 film grown by molecular beam epitaxy. Ferromagnetic resonance (FMR) measurements reveal a low intrinsic magnetic damping a FMR int ¼ ð1:560:1Þ Â 10 À3 . In contrast, in patterned micrometer wide stripes, spin wave (SW) propagation experiments performed by time resolved scanning magneto-optical Kerr microscopy yield attenuation lengths on the order of 5-8 lm. From this quantity, we deduce an effective magnetic SW damping a SW; exp eff ¼ ð3:960:3Þ Â 10 À3 . For the system studied, this significant difference between both damping parameters is attributed to the nonnegligible extrinsic contributions (local inhomogeneities and two-magnon scattering) to the magnetic losses which manifest themselves as a distinct inhomogeneous FMR linewidth broadening. This explanation is supported by micromagnetic simulations. Our findings prove that polycrystalline Co 25 Fe 75 represents a promising binary 3d transition metal alloy to be employed in magnonic devices with much longer SW attenuation lengths compared to other metallic systems.

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“…Ferrimagnetic insulators, with yttrium iron garnet (YIG, Y 3 Fe 5 O1 2 ) as the prime representative [24], are of particular importance for spintronic applications owing to their high spin pumping efficiency [25] and the lowest known Gilbert damping [26]. However, inducing magnetization dynamics in ferrimagnetic garnets optically is quite challenging, as it requires large photon energies of pump pulses (the bandgap of YIG is E g ≈ 2.8 eV) [27] while the most common ultrafast laser systems usually generate light in the near-infrared spectral region. In principle, it is possible to reach the required spectral range by a frequency doubling of the laser output yet the resulting pulse energy is typically too low to be used as 'pump' pulses.…”

Section: Introductionmentioning

confidence: 99%

Thermally induced all-optical ferromagnetic resonance in thin YIG films

Schmoranzerová

Kimák²,

Schlitz³

et al. 2023

New J. Phys.

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All-optical ferromagnetic resonance (AO-FMR) is a powerful tool for the local detection of micromagnetic parameters, such as magnetic anisotropy, Gilbert damping or spin stiffness. In this work we demonstrate that the AO-FMR method can be used in thin films of Yttrium Iron Garnet (YIG) if a metallic capping layer (Au, Pt) is deposited on top of the film. Magnetization precession is triggered by heating of the metallic layer with femtosecond laser pulses. The heat pulse modifies the magneto-crystalline anisotropy of the YIG film and shifts the quasi-equilibrium orientation of the magnetization, which results in precessional magnetization dynamics. The laser-induced magnetization precession corresponds to a uniform (Kittel) magnon mode, with the precession frequency determined by the magnetic anisotropy of the material as well as the external magnetic field, and the damping time set by a Gilbert damping parameter. The AO-FMR method thus enables measuring local magnetic properties, with a resolution given by the laser spot size.

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Novel Applications

Cited by 94 publications

References 19 publications

Magneto-Plasmonics and Resonant Interaction of Light with Dynamic Magnetisation in Metallic and All-Magneto-Dielectric Nanostructures

Magneto-Plasmonics and Resonant Interaction of Light with Dynamic Magnetisation in Metallic and All-Magneto-Dielectric Nanostructures

Magnetic damping in poly-crystalline Co25Fe75: Ferromagnetic resonance vs. spin wave propagation experiments

Thermally induced all-optical ferromagnetic resonance in thin YIG films

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